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已知集合M={-1,1},N={x∈Z|<2x+1<4},则M∩N等于( )
A.{-1,1}
B.{-1}
C.{0}
D.{-1,0}
已知集合P={0,m},Q={x|2x2-5x<0,x∈Z},若P∩Q≠,则m等于( )
A.1 B.2 C.1或 D.1或2
已知集合P={0,m},Q={x|2x2-5x<0,x∈Z},若P∩Q≠∅,则m等于( )
A.1 B.2
C.1或 D.1或2
已知集合A={α|2kπ≤α≤(2k+1)π,k∈Z},B={α|-4≤α≤4},则A∩B等于
{α|-4≤α≤-π或0≤α≤π}
{α|-4≤α≤4}
{α|0≤α≤π}
已知集合A={x|-1≤x≤2,x∈Z},集合B={0,2,4},则A∪B等于
A.{-1,0,1,2,4}
B.{-1,0,2,4}
C.{0,2,4}
D.{0,1,2,4}